They use CR123 batteries. On the battery side it's not cheap, but it seems to last a long time. The display stand can be used to hang on a wall or as a desk top display wich I thought was pretty cool. As with any FX sword it is not meant for dueling, light sword play is O.K. I would not recomend it for anything heavier. If your boys understand this then they should last a long time. I may get another to tinker with. ;)